... a kind of lifting parts, and other series worm gear screw lift compared with a compact,small size,easy to install ... ,100T2.Configuration: Worm and worm gear, bearing, housing and lead screw.3.Function: Elevating, lowering, pulling, pressing, pushing, rotating.4.Power ... .1 ton to 26 ton per set7. Accessory: Motor, hand wheel, reducers, rubber bellows, steel cover, bevel gearbox, safety nut, frequency ...